ENERGY STAR® is the government-backed symbol for energy efficiency, providing simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. ENERGY STAR is the simple choice for energy efficiency, making it easy for consumers and businesses to purchase products that save them money and protect the environment. ENERGY STAR DELL 2155cn, لیزر, Colour printing, 1200 x 1200 DPI, Mono copying, Mono scanning, A4 DELL 2155cn. تکنولوژی چاپ: لیزر, Printing: Colour printing, حداکثر وضوح: 1200 x 1200 DPI, سرعت چاپ (رنگی، کیفیت متوسط​​، Letter A4/US): 24 ppm. Copying: Mono copying. Scanning: Mono scanning, رزولوشن اسکن اپتیکال: 1200 x 1200 DPI. Faxing: Mono faxing. Maximum ISO A-series paper size: A4